Color, pale purplish blue. Flowers, 3 to 6 together, on peduncles, arising from the axils, the raceme a little shorter than the leaves. Pod, hairy. Leaves, of 12 to 14 leaflets, terminated by 2 or 3 delicate tendrils, the leaflets cut square at apex, notched, nearly sessile. May to September.
V, caroliniana. - Color, whitish, the keel of the papilionaceous corolla tipped with blue. Flowers, small, less densely clustered than in the preceding racemes, shorter than the leaves, somewhat drooping. Leaves, of 4 to 9 pairs of linear, smooth, entire leaflets, terminating with one or more tendrils. May to July.
Pea Vine V. americana. - Color, purplish. This species has 4 to 8 flowers, rather large, in the raceme, which is shorter than the leaves, straggling. Leaves, 5 to 7 pairs ended by long tendrils, with stipules nearly 1/2 inch broad and sharply toothed. May to August.
Wet soil, as river-banks, from Virginia and Kentucky northward. Pound 3,500 feel high in Virginia.
Groundnut. Wild Bean Apios tuberosa (name means "a pear," from the shape of the tubers). - Family, Pulse. Co lor, brownish purple. Calyx, slightly 2dipped, the 2 upper teeth short, the 2 lateral ones nearly invisible, the lower one long. Corolla, papilion ceous, with a broad, turned-back standard and scythe-sheed keen. Flowers, in short thick racemes, on axillary peduncles; pleasantly violet-scent Leaves, divided into 3 to 7 long, narrow leaflets, with small stipules Leaves much longer than the raceme of flowers. Stems, slender, somewhat hairy, with a little milky juice, climbing and massing over bushes. Pods produce kidney-shaped beans variously and prettily marked and colored. July to September.